Render an EXR sequence, re-import it in 8 bpc mode, add adjustments to compensate and only then render to H.264.
I'll give that a try.
I am still wondering why there is no movie codes that will render straight out of 32 bit. I guess come apple mov format will handle that. Unfortunately I not yet testet them or rather which.
What do you mean by adding adjustments? Is there a specific workflow?
For me it worked to export as PNG sequence and then reimportet into AE and export tp H264 with Animation codes. Nevertheless I see some color banding after transcoding. Any idea to improve that?